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參數(shù)資料
| 型號： | KMPC8347VVAJF |
| 廠商： | Freescale Semiconductor |
| 文件頁數(shù)： | 92/99頁 |
| 文件大小： | 0K |
| 描述： | IC MPU PWRQUICC II 672-TBGA |
| 標準包裝： | 2 |
| 系列： | MPC83xx |
| 處理器類型： | 32-位 MPC83xx PowerQUICC II Pro |
| 速度： | 533MHz |
| 電壓： | 1.2V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 672-LBGA |
| 供應商設備封裝： | 672-TBGA（35x35） |
| 包裝： | 托盤 |
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MPC8347EA PowerQUICC II Pro Integrated Host Processor Hardware Specifications, Rev. 12
92
Freescale Semiconductor
System Design Information
capacitive loads. This noise must be prevented from reaching other components in the MPC8347EA
system, and the device itself requires a clean, tightly regulated source of power. Therefore, the system
designer should place at least one decoupling capacitor at each VDD, OVDD, GVDD, and LVDD pin of the
device. These capacitors should receive their power from separate VDD, OVDD, GVDD, LVDD, and GND
power planes in the PCB, with short traces to minimize inductance. Capacitors can be placed directly under
the device using a standard escape pattern. Others can surround the part.
These capacitors should have a value of 0.01 or 0.1 F. Only ceramic SMT (surface mount technology)
capacitors should be used to minimize lead inductance, preferably 0402 or 0603 sizes.
In addition, distribute several bulk storage capacitors around the PCB, feeding the VDD, OVDD, GVDD,
and LVDD planes, to enable quick recharging of the smaller chip capacitors. These bulk capacitors should
have a low ESR (equivalent series resistance) rating to ensure the quick response time. They should also
be connected to the power and ground planes through two vias to minimize inductance. Suggested bulk
capacitors are 100–330 F (AVX TPS tantalum or Sanyo OSCON).
21.4
Connection Recommendations
To ensure reliable operation, connect unused inputs to an appropriate signal level. Unused active low
inputs should be tied to OVDD, GVDD, or LVDD as required. Unused active high inputs should be
connected to GND. All NC (no-connect) signals must remain unconnected.
Power and ground connections must be made to all external VDD, GVDD, LVDD, OVDD, and GND pins of
the MPC8347EA.
21.5
Output Buffer DC Impedance
The MPC8347EA drivers are characterized over process, voltage, and temperature. For all buses, the
driver is a push-pull single-ended driver type (open drain for I2C).
To measure Z0 for the single-ended drivers, an external resistor is connected from the chip pad to OVDD
or GND. Then the value of each resistor is varied until the pad voltage is OVDD/2 (see Figure 44). The
output impedance is the average of two components, the resistances of the pull-up and pull-down devices.
When data is held high, SW1 is closed (SW2 is open) and RP is trimmed until the voltage at the pad equals
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| KMPC8347VVALFB | 功能描述:微處理器 - MPU 8349 TBGA NOPB RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:536 MHz 程序存儲器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-324 |
| KMPC8347ZQAGD | 功能描述:IC MPU POWERQUICC II 620-PBGA RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微處理器 系列:MPC83xx 標準包裝:2 系列:MPC8xx 處理器類型:32-位 MPC8xx PowerQUICC 特點:- 速度:133MHz 電壓:3.3V 安裝類型:表面貼裝 封裝/外殼:357-BBGA 供應商設備封裝:357-PBGA（25x25） 包裝:托盤 |
| KMPC8347ZQAGDB | 功能描述:微處理器 - MPU 8347 PBGA PB W/O ENC RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:536 MHz 程序存儲器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-324 |
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